False wiring and seaming mechanism



Jan. 25 1927.

1,615,325 w. CAMERON FALSE WIRING AND SEAMING MECHANISM Filed May 14 1925 2 sheets-sheet 1 (I/llllllln/IIIIIllIIlIlIIl/(llllll l 1 w. CAMERON FALSE WIRING AND SEAMING MECHANISM Jan; 25 1927.

2 Sheets-Sheet 2 Filed May 14 I 1925 Patented Jan. 25, 1927.

UNiTEzDi-i SiTTiS.

PATENT? orner-i.

FAIL-SE wrnine' Annsnlliinrnd "MECHNISM.

Application fua Mayn, 1925.1 serial NC. 30,139."

My invention relates to can formingf mal chines land particularly #to a .mechanismy for seaminga cap 'onto one endof a cylini Variousforms' of individual machines for performing these two operations are well known in the art, but heretofore'no single' machine has been -devised for' perform-ing"i both of these operations during a continuous 'movement of the fblankl through the machine.-l f

My improved mechanism is designed primarily forandadapted to 'be included in a can machine ofthe form shown inmyap` plication for United States' Letters "Patent, tiled March 22,f'1923, Serial fNo 626,733, under 'the title' 'of iDouble seaming 'machinesf However, I do not limitf'myseifto 'the em'` ployme'nt 'of'fany particular deviceor con' struction for the embodiment ofthi's inven` tion. as theprinciples thereofmayfbe'aps' plied in many different constructions `a`s willv be readily apparent from a 'perusalfof the drawings in connection with thefspecifical tion and claims hereinafter set forth.' However, for the' purpose' of explanation'and a betterunderstanding of the n'iechanisin.v 'I shaltV describe the same in f connection' 'witlr theconstruction in' said application;

A particular feature of the linvention herein disclosed is that themachine is capable of quick and accurate adjustment vby the'y interchangeability lof a few 'part`s,' so that it can be ma'de'to 2accommodate can" bodies of various lheightsandsizes, andt onl account of its possessing` few"moving"and operating); parts, it is extremely accurate anda reliable in operation and very durable. i'

Another feature ofthe invention is the rapidity with' which the two operations 'are' performed in this machine which will recommend it at onceto those interested'in this art.

Referring to the drawings,

Fig. 1 is a partial vertical sectional viewv of a machine embodying' my invention, i

Fig. 2 is a like view showingsomeof the operating parts in different position;V

Fig'. 3 is a top plan view of the can body supportingrandfalse wiring mechanism', f

Fig. 4 is a developed View ofthe can body liftingl cam mechanism operated therebyL-f Fig'f is a longitudinal'sectional view of' thecan body land cap 'before being 'operated upoiiyand FigfG ris alike viewbfthe bodyafter" being operated' upon.

Like symbols of reference herein'V indi-4 cate 'like'lparts in vveach 'of the figures of the drawing."

Reference numeral 7 indicates a vertical shaftfwhich rotates in a counterclockwise direction through the medium ofthe mecha- 1iisms`=shown in 'the 'aforementoned application, fand for thepurpo-se of this description letus assumethat this shaft corresponds with the shaft 74 therein'shown with 'all its attendant driving mechanisln.` Theshaftl 7 lis 'provide-d with a spurgear 8v which meshes Awith thegear face -9 on' the lower spider 10 to rotate saidspider on the shaft 11. Y,

The shaft?` is also 'provided ata point nea1'""its lupper 'end-'witha 'pinion 12 which meslieswithla ringgear 13 on the upper spider14.'A Thisupper-spider'f14' is also rotatably mounted on the shaftll 'and vasthe pinions 8 and l2'are of'the same size,'the lower spider'l() and the upper spider 14 will be caused'to rotate in a clockwise directionat a uniform `rate of speed.

The lower spider 10 is provided with a plurality of can body" supporting' andlifting devices 1-5 spaced equidistant around the saidf spider andfvfor the purpose. of this inventioii have shown the spider to have ten of '-the"same,` as iwill readily be seen'fromthe developed diagrammatic view shown in Fig. 4 vwitlreacli of the said'devices thirty-six degrees "apart; Eachof these Cansupport'- ing devices is carried uponal postlG having a tapered shoulder 17 above the enlarged port-ion' 18, whilefthe large bott-om 19 of said lpost E16`i`s bifurcatedto form the arms 20 in which, 'upon a` shaft 21is mounted a rolleror cam follower 22' adapted -to travel upon a circular vcam QSsurrou'nding the base 24 of the machine-.i Theportion' 19 of each post is slidablymounted in'a `vertical guide bearing 24 of said spider' andaspiral spring 25 interposed'betweenf`the'shoulder 27 and theflowerend'QS of the slidingfsleeve 29 depending from the table member' 30, provides a yieldable connection between the post and table.

The circular perimeter ot' each table 30 slidably iits in a socket 3l with its upper tace 32 normally flush with the upper tace ot' the spider but adapted to be elevated above the plane ot the spider as shown in F ig. 2. This upward movement is limited by headed studs 33, the head 35 ot which is relatively slidable in the socket 34 termed in the table so that the table is held by the stud against rotation, but may move upwardly until the bottom of the socket abuts against the head 35. lllithin the table 30 and having a downwardly extending portion 36 extending into the interior ot the sleeve 29, is a block 37 which has a countersunk hole 38 therein tor the reception of a pin 39 extending upwardly from the table to prevent rotation ot the block. Said block is secured in position by a circular nut 49 engaged with the threaded upper portion 41 ot' the post 16 and tits within the countersunk portion 26 in the center ot the member 36. rlhis nut is split at 42 and a set screw 43 projecting into the kert' is adapted to lock said nut against displacement. A spiral spring 48 surrounding the post 16 between the tapered shoulder 17 and the bottom tace of the downwardly extending portion 36 ot the block 37 normally holds the block in elevated position so as to provide a clearance space 47 between the body of the block and the bottom of the socket 45.

The annular recess in each table in which the block 37 is accommodated is shaped to provide a plurality ot., in this instance, three, radial extensions to receive the false wiring rolls 56.

Each block 37 is provided with correspondingly postioned openings 51 for the reception ot stub shafts 52 upon which the rolls 56 are mounted. Each shaft is provided with a collar 53 which abuts against the opposed tace ot the block and each shaft is locked in position by a set screw 54. 'The outer face 5l ot the collar is tapered and between this collar and a similar collar 57 having a tapered tace 59 is rotatably mounted a die roll 56. rl"he collar 57 is held in position by a lock screw 58 and the die roll is rotatably carried upon the collars by ball bearings 60.

The die rolls 56 are cach formed with a peripheral shaping groove 61 tor curling in one edge ot' the can body while the outer portion 62 of each roll is of greater diameter than the inner portion 63 for a purpose which will be later explained.

In the path ot travel ot the can cap 79 is mounted a seaming roll 71 which is rotatable on a shaft 72 ixed in the biturcated block 73 which has an extension 74 provided with a recess 75. The block is secured to its supporting member 78 by a countcrsunk bolt 76 provided with a nut 79. An expansion spring 77 disposed in the recess 75 urges the seaming roll outwardly into working position, and the lost motion space 8O between the block and the member 7 8 permits the roll to yield inwardly under excessive pressure, against the torce o't the spring. The member 7 8 and the seaming roll are radially adjustable in the member S1 by means of an adjusting screw 83 threadedly engaged with an extension S2 depending trom the member 78. One ot the bearings 84 tor this screw is removably threaded into the member 81 as indicated at 85 to facilitate assembly ot the parts.

'ihere may be either one or a plurality ot seaming rolls 7l for accomplishing the double scanningl of the can cap to the body, and the forming groove will be shaped accordingly. For the purpose ot this invention, however, we will consider that the double seaming done by a single roll such as is shown in Figs. l and 2. t C I lhe cap and body splnning mechanism which is precisely the same as that shown in my aforementioned application, consists of a series ot hollow chuck spindles 95, each carrying at its lower end a cam cap engaging chuck 94, shaped on its lower tace to lit the top ot' the cap. An upward thrust upon the chuck and spindle exerted by upward pressure ot the body and cap produced by the action of the cam 23 upon the litting rolls 22 is absorbed in the anti-friction roller bearings 96 with which cach spindle is equipped. This mechanism is operated through the medium ot the gear 93 and the pinions 99.

In the operation ot a machine embodying my invention., the can caps and bodies are ted into their respective vertically aligned pockets in the spider by any suitable mechanism such, for instance, as that disclosed in my pending` application above riterred to, each body being disposed upon end supported by one of the supporting mechanisms l5 which is in its lowered position shown in Fig. 1, and at this instant, let us snppese that the roller or cam follower 22 is at the position indicated by the letter ji in Fig. l-. The can cap being positioned above the cylindrical body, the roller or cam follower 22 starts up the inclined tace 67 ot the am 23 and such travel will cause the post 16 and the nut 49 to be clerated, while Jhe table 39 will also have a tendency to risc with the said nut because ot the action et the spring 25. The bottom edge ot the can body being disposed directly over the Atorining grooves in the rolls 56 will. upon this upward movement ot the post 16 and table 3U, enter the grooves and be turned or curled in to contorni to the shape thereof as the body is rapidly spun or revolved by the action o'l the rotatingspindlc A95. @If the shortening, ;u ofthe can body bylreason` of the* false Wiringfor turning-in of y'the 'bottom edge ofthe can body'bytherolls is less rapid than the rise of the'cam` follower-22 on the inclined face S7 oi'. the cam 21%, theJ spring' 48- will yield under the pressure exerted upon the block 37 thereby compensating for thisrdiiference and at the sanietime main'- taining the pressure of the rolls againstthe end4 oi' the body;`

rlhis' compression ot 'the spring' 48 can only be accomplished to the distance of the space 47 between-the bottom i6 of theblock and thebottom ot' the/recess in the tableA 30. Thisresilient.-engagement of the roller' 56 with the bottom edge-of thecanbody is also' enchanced V'by the *spring located' between thebottomZS o1c the sleeve' 29 and thesl'ioulder 27of'the spindle.v Theaipward ino'vei ment oi the tables 30 is limited and rotation -thereofis prevented by the`-headed studs 33 While the/rotation ot the'blocl lis prevented'by t-he pin 39 extending intol therecess 38.

Dining the initial travel oit the cam telf lower'a22 up `the. rise ,87` ci' the cam 23, the body X'ol: the can which has 'previously beenll'ianged as at 90 iin Figure '5, is elevated intothe cap 170 which has lpreviousl-yfhad the downwardly extending` flange 91 termed theronyand the bodyand'capvareV clamped bet-Ween therising'ftable and the spindle ChuclrQt; Vrlhe spinning of `this chuck causes theicap and body to revolveasa unit/Eat a high `Speed'so `that the lower edge'otthebody resting on theforming rolls is curled or turned inwardly by the roll grooves., 'thus ei'l'ectingthe false wiring as the lcam follower continues 'upy therise of the cannhrit ap-f proximately the time* that the iolloiver reaches the point B on the cam, thefcap'lis brought "int-o engagement kWitlrfthe scanning rollv 7l whichseams the cap onto" thebody asshovvn' at 92 in Fig. 6. Whether one or more rolls 7l are `used for termin 'the double seam, the seaming operation 'u ill be completed at approximatelythe point@ on the cam' and the follower will then ride "downthe inclined surfacelOO to the point D Where, through the -inediumof Vthe mechanism shown in the aforementioned application, the can -Will be disengaged'fron'l Vthe chuck Sli-and removed from `the `'machine therein shown'.

It will be obvious that my improved mech# anism `may be embodied in lmachinesother than that shown in my pendingapplication to which I have referred andl do notlimitA n'iysel'i to any such constructionyas it will be manifest that the invention is not limited to the details which I have selected Jfor illus` trative purposes, but is capable of embodi-` ment in machines diiiiering materially-inl ther lconstruction"and mode offoperation frm that shown' andfs'desbribed*Without departing*` from' the `Lessence of' the; *invention as'delin'e'd 'ih the iolloWinfgic-laims.

l. `In'ta 'can forming inachine, theffcomiI bination Aof' a movable supportg ineans 1rtor spinning a canI xbody ion said shpport7 'mean-s engaging 'one 'end of' said i body to fornra false 'ivirin'g,v means `for seaming' a` cap onto the"otl1`er end-thereofy'andmeans for actuatingsa-id' false Wi'ring 'and seainingf means automatically: during the f movement l otE -said supporti 2. Ina canlforming"machine,'ethe1 combination of a movableisupportif means lfor"l spinning-a can--;bodyl "ony `said *supportyy means engaging one endthereottoform. a ialseL Wiring;i 4and vmeans e for seaming -a cap onto 'the other end' thereoi said operations being 'completedu during' the continuous movement I of said support:

3. In 'a can-forming machine, thel combinationvof a imovabfle'lsupport, -means'` for spinning a can 'body onl said. support,` die rollse'ngaging'one endfthereofvto form a talse Wiring,l means for -seaming la' capv onto the other end thereof'andrmeans-automatica lyE voperal-)l'e1 bythe movement of 'said supportfor eausinglsaiddie rollsto form said false wiring and'fforicausing said last mentioned means 'to seam fsaid cap 4.11111 a `can forming machinefthe fcombinationef a movable. support means for spinning a can'fbodyon said support-die rolls-4 stationary as to Ithe .spinning move-` ment and adapted to engage one end 'of said can"A to *form Ea false wiring;i means fior doubleseaming cap`onto"the other end thereof', and means automatically operable by "the movement ofsaid support for causing" Saidrdie rol-ls to. form said, falsewiring'and for y'causing saidI l'ast menti'oned'means to double seam said cap.

5. In -a can;ioriningmachine, the `combination of a movable support;l meansfor spinning-*a 'can' body 'o'n saidl support;1neans for -continnduslyfmoving said support means for false"\-Ji1ir'1`gone ltend thereof; means ffo'rdouble seainiig a cap' *l ontoJ Lthe otherr'end, and` means' operable during the'fmovement of saidsfupportfor 'causing the actuation or" the last* tWo means v `G. InY a can'iorming machinethe combinati'on oii'means for continuously advanc-v ing' and simultaneously rotating can body and a cap, means for false wiring one endof saidl body and doublebseaming the cap onto the othereendl thereof -during such conti'l'luous travel.l

7. Ina can forming machine, lthe come binati'on `ot falsev 'Wiring' mechanism means for continuously' advancing said mechanism and a can bodyyandmeans for falselwiring one end ioi said body during such continuous travolti i S. In a can forming machine, the combination of means for continuously advancing a can body and a cap, means Jfor spinning said body during such advance, means engaging the lower edge of said body to false wire the same, means for double seaming the cap onto the upper end of said body and means operable du 1ing such continuous travel for actuating the last two means.

49. In a can forming machine, the combination of means for continuously advancing a can body and a cap, means for spinning said body, means for false wiring the lower edge of said body, means for elevating said body against the cap, and means :tor double seaming said cap onto said body during such continuous travel.

10. In a can forming machine, the combination of means for continuously advancing a can body and a cap, means for spinning said body, die rolls stationary as to the spinning movement or said can, means l'or pressing said body upward into engagement with said cap and l'or false wiring the lower edge ot said body, and means tor double seaming said cap onto said body during such continuous travel.

11. A false wiring mechanism comprising a movable can body support, means for spinning said body on said support, means for elevating said body into a squeezing engagement, and means carried by said support for false wiring the lower edge of said body during said squeezing engagement all of said means being operable `during the movement of said support.

12. A false wiring mechanism comprising a movable can body support, means for spinning said body on said support, means for elevating said body into a squeezing engagement, and die rolls carried by said/support tor false wiring the lower edge of said body during said squeezing engagement all of said means being operable during the movement of said support. y

13. A false wiring mechanism comprising a movable can body support, means for spinning said body on said support, means for elevating said body into a squeezing engagement, and dierolls stationary as to the spinning movement of said body and carried by said support for false wiring the lower edge of said body during said squeezing engagement said elevating means being automatically operable by the movement of said support.

1st. In a can forming machine, the combination of a continuously traveling can body support, means for rotating a can body upon said support, means for elevating said support, and means carried by the support tor false wiring an end of said body during the elevation of the support.

15. In a can liorming machine, the combination of a continuously traveling can body support, means 'for rotating a can body upon said support, means for elevating said support, and yieldable means on said support engaging with and false wiring one end of said body during the elevation ot said support.

16. In a can 'forming machine` the combination ot a continuously traveling can body support, means for rotating a can body upon said support, means for elevating said support, and die rolls carried by the support for false wiring an end of said body during the elevation of the support.

17. In a can forming machine, the combination ei a continuously traveling can body support, means for rotating a can body upon said support, means for elevating said support, and yieldable die rolls on said support engaging with and false wiring an end of said body during the elevation of said support.

18. In a can forming machine, the combination of a continuously traveling can body support, means Jfor rotating a can body upon said support, means for elevating said support, a die block in said support carrying means for false wiring one end o't said body during the elevation of said support, and means tor maintaining uniform pressure of said last named means during the false wiring operation.

19. In a can forming machine, the combination of a continuously traveling can body support, means for rotating a can body upon said support, means for elevating said support, means on said support engaging with and false wiring one end of said body during the elevation of said support, and means providing yieldabilitv to said last named means to compensate for the elevation of said body Yitaster than its decrease in height.

20. In a can forming machine, the combination ot a continuously traveling can body support, means for rotating a can body upon said support, means for elevating said support` die rolls on said support engaging with and Jfalse wiring one end of said body during the elevation oit said support, and means providing` yieldability to said die rolls to compensate for the elevation of said body faster than its decrease in length.

21. In a can forming machine, the combination of a continuously travelingI can body support` means for rotating a can body upon said support, means for elevating said support. a die block on said support having a plurality of die rolls for false wiring one ond ot said body during the elevation of said support, and means providing yieldability between said die block and said support to compensate for the elevation of said body faster than its decrease in length.

22. In a can forming machine, the combination of a continuously moving member,

llO

' ing said supports,

member,

` named means to compensate for the elevation of said body faster than its decrease in length.

23. In a can forming machine, the co1nbination of a continuously moving member, can body supports on said member, the upper surfaces of which are normally contignous to the upper surface of said member, means for rotating a can body on each of said supports, means for successively elevata die block in each support, die rolls in said blocks for false wiring one end of said body during the elevation of said supports, and yieldable means between said die block and said support to compensate for the elevation of said body faster than its decrease in length.

24. In a can forming machine, the combination of a continuously moving member, can body supports on said member the upper surfaces of which are normally contiguous with the upper surface of said member, means for rotating a can body on each of said supports, a cam for successively elevating said supports, a die block in each support, a plurality of die rolls in said blocks for false wiring one end of said body during the elevation of said supports, and

yieldable means between said die block and said support to compensate for the elevation of said body faster than its decrease in length.

25. In a can forming machine, the combination of a continuously moving member, can body supports on said member the upper surfaces of which are normally contiguous with the upper surface of said member, means for rotating a can body on each of said supports, a die block in each support, a plurality of die rolls in each support, a cam follower on each of said supports, a cam engaging said followers to successively elevate said supports whereby the die rolls engage one end of said body and false wire same, and means between said die blocks and said supports for permitting a slower elevation of said blocks than said supports.

26. In a can forming machine, the combination of a non-rotatable can body supporting chuck provided with a false wiring device, means for continuously moving said chuck and a can body supported thereon, means for revolving the can body during such movement to effect the false wiring, and means for double seaming the opposite end of the can body during such movement.

27. In a can body forming machine, the combination of means for continuously advancing and simultaneously rotating a can body, false wiring mechanism movable with said body to perform the false wiring oper'- ation during the rotation of the body, and means past which said body travels for double seaming a cap to said body.

WILLIAM CAMERON. 

